Gabby Hartnett vs Biz Mackey: Career Stats Comparison

Gabby Hartnett has the better career line of the two, leading 9 of the 14 scored categories on this page (1 further counting total is shown but not scored). Gabby Hartnett played 1922–1941 as a hitter; Biz Mackey played ?–1947 as a hitter.

AVG (Batting Average):
Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
HR (Home Runs):
Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
RBI (Runs Batted In):
Runs that scored as a direct result of a batter's plate appearance.
OPS (On-Base Plus Slugging):
On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.

Data updated

Gabby Hartnett (1922–1941) and Biz Mackey (?–1947) — their careers are worth a careful side-by-side. Gabby Hartnett finished with 1,912 hits and 236 home runs; Biz Mackey finished with 1,165 hits and 64 home runs. Below is the full career table, PIV adjustment, peak seasons, and a verdict.

Quick answer

  • Who hit more home runs? Gabby Hartnett, with 236 to Biz Mackey's 64.
  • Who had the higher OPS? Biz Mackey, with .871 to Gabby Hartnett's .858.
  • Who had the higher batting average? Biz Mackey, with .329 to Gabby Hartnett's .297.
  • Who had more hits? Gabby Hartnett, with 1,912 to Biz Mackey's 1,165.
  • Who drove in more runs? Gabby Hartnett, with 1,179 to Biz Mackey's 698.
  • Who has the higher career PIV? Gabby Hartnett, with 20,627 career PIV to Biz Mackey's 11,740.
  • Who won more championships? Biz Mackey, with 2 World Series titles to Gabby Hartnett's 0.
Leads Gabby Hartnett 9 of 14 scored categories (1 tied)
PIV edge Gabby Hartnett +8,887
Read the verdict ↓

Gabby Hartnett

Hitter · 1922–1941
Games
1,990
Hits
1,912
Home Runs
236
RBI
1,179
Avg
.297
OPS
.858
View Gabby Hartnett's full profile →

Biz Mackey

Hitter · ?–1947
Games
1,031
Hits
1,165
Home Runs
64
RBI
698
Avg
.329
OPS
.871
View Biz Mackey's full profile →

Career Stats Side-by-Side

Every cell below is a career total or career rate for Gabby Hartnett and Biz Mackey. Cells highlighted in green mark the category leader. 14 of the 15 lines below are scored; the other one is a counting total on which fewer is not an achievement, so no one is awarded it. Counting stats reward longevity, and strikeouts are left unmarked because a longer career accumulates more of them. Rate stats are not era-adjusted, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.

Gabby Hartnett vs Biz Mackey: Career Stats Comparison — Career Stats Side-by-Side
Statistic Gabby Hartnett Biz Mackey
Games Leads: 1,990 1,031
At-Bats Leads: 6,432 3,540
Runs Leads: 867 584
Hits Leads: 1,912 1,165
Doubles Leads: 396 202
Triples 64 64
Home Runs Leads: 236 64
RBI Leads: 1,179 698
Walks Leads: 703 361
Strikeouts not scored 697 18
Stolen Bases 28 Leads: 73
Batting Avg .297 Leads: .329
On-Base % .370 Leads: .394
Slugging % Leads: .489 .477
OPS .858 Leads: .871

PIV Comparison through 2025

By PIV (Player Impact Value), Gabby Hartnett outpaces Biz Mackey 20,627 to 11,740 — driven by per-season impact — 1,031 PIV per season to 405 — rather than by longevity, since Gabby Hartnett played 20 seasons to Biz Mackey's 29. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

PIV is computed through the 2025 season. The career totals on this page include 2026 to date, so PIV does not yet reflect the 2026 season.

Gabby Hartnett
20,627
Career PIV · 1,031 per season (20 seasons)
Biz Mackey
11,740
Career PIV · 405 per season (29 seasons)

How PIV is calculated →

Peak Seasons

The best single seasons each player produced, ranked by OPS among qualified workloads (300+ at-bats).

Gabby Hartnett — top 3 seasons by OPS

19301.034 OPS37 HR, 122 RBI, .339 avg
1937.971 OPS12 HR, 82 RBI, .354 avg
1935.949 OPS13 HR, 91 RBI, .344 avg

Biz Mackey — top 1 season by OPS

1926.922 OPS10 HR, 76 RBI, .327 avg

Verdict

On the head-to-head card, Gabby Hartnett leads in hits, home runs, RBI, and runs, while Biz Mackey owns stolen bases, batting average, and OBP. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Gabby Hartnett. PIV agrees: Gabby Hartnett grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Gabby Hartnett and Biz Mackey careers compare

No season is shared: Gabby Hartnett played 1922–1941, Biz Mackey ?–1947. Playing time explains much of the gap in the counting rows: Gabby Hartnett appeared in 1,990 games to Biz Mackey's 1,031. The green cells for Biz Mackey are stolen bases (73 to 28), batting average (.329 to .297), and on-base percentage (.394 to .370). Gabby Hartnett walked more often than struck out (703 walks, 697 strikeouts); Biz Mackey walked more often than struck out (361 walks, 18 strikeouts). Gabby Hartnett is the more power-leaning hitter, with 236 of 1,912 hits leaving the park. In slugging percentage, Gabby Hartnett holds the edge, .489 to .477.

Gabby Hartnett vs Biz Mackey: Frequently Asked Questions

Who was better, Gabby Hartnett or Biz Mackey?
By the career statistics compared on this page, Gabby Hartnett leads Biz Mackey in 9 of the 14 scored categories.
Did Gabby Hartnett or Biz Mackey hit more home runs?
Gabby Hartnett, with 236 to Biz Mackey's 64.
Who had the higher OPS?
Biz Mackey, with .871 to Gabby Hartnett's .858.
Who had the higher batting average?
Biz Mackey, with .329 to Gabby Hartnett's .297.
Who had more hits?
Gabby Hartnett, with 1,912 to Biz Mackey's 1,165.